Physics WAEC / WASSCE 2010 Waves, Sound & Vibrations
A ray of light travels from air to water. The refeactive index of water is given by the expression
A
\(\frac{\text{velocity in water}}{\text{velocity in air}}\)
B
\(\frac{\text{sine of angle of refraction}}{\text{sine of angle of incidence}}\)
C
\(\frac{\text{apparent depth}}{\text{real depth }}\)
D
\(\frac{\text{wavelength in air}}{\text{wavelength in water}}\)
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